A complex baleen whale call recorded in the Mariana Trench Marine National Monument.

In fall 2014 and spring 2015, passive acoustic data were collected via autonomous gliders east of Guam in an area that included the Mariana Trench Marine National Monument. A short (2-4 s), complex sound was recorded that features a ∼38 Hz moan with both harmonics and amplitude modulation, followed by broad-frequency metallic-sounding sweeps up to 7.5 kHz. This sound was recorded regularly during both fall and spring surveys. Aurally, the sound is quite unusual and most resembles the minke whale "Star Wars" call. It is likely this sound is biological and produced by a baleen whale.

[1]  K M Stafford,et al.  Low-frequency whale sounds recorded on hydrophones moored in the eastern tropical Pacific. , 1999, The Journal of the Acoustical Society of America.

[2]  V Dayal,et al.  Report of the scientific committee. , 2000, Journal of the Indian Medical Association.

[3]  U. Siebert,et al.  Mysterious bio-duck sound attributed to the Antarctic minke whale (Balaenoptera bonaerensis) , 2014, Biology Letters.

[4]  P. O. Thompson,et al.  20-Hz pulses and other vocalizations of fin whales, Balaenoptera physalus, in the Gulf of California, Mexico. , 1990, The Journal of the Acoustical Society of America.

[5]  S. Heimlich,et al.  Types, distribution, and seasonal occurrence of sounds attributed to Bryde's whales (Balaenoptera edeni) recorded in the eastern tropical Pacific, 1999-2001. , 2005, The Journal of the Acoustical Society of America.

[6]  J. Trickey,et al.  Analysis of long-term acoustic datasets for baleen whales and beaked whales within the Mariana Islands Range Complex (MIRC) for 2010 to 2013 , 2015 .

[7]  Luis J. Villanueva-Rivera,et al.  Soundscape Ecology: The Science of Sound in the Landscape , 2011 .

[8]  Shannon Rankin,et al.  VOCALIZATIONS OF THE SEI WHALE BALAENOPTERA BOREALIS OFF THE HAWAIIAN ISLANDS , 2007 .

[9]  W. Watkins,et al.  Activities and underwater sounds of fin whales [Balaenoptera physalus] , 1981 .

[10]  K. Stafford,et al.  Geographic and seasonal variation of blue whale calls in the North Pacific , 2023, J. Cetacean Res. Manage..

[11]  J. Hildebrand.  Anthropogenic and natural sources of ambient noise in the ocean , 2009 .

[12]  Shannon Rankin,et al.  Source of the North Pacific "boing" sound attributed to minke whales. , 2005, The Journal of the Acoustical Society of America.

[13]  D. Costa,et al.  Localization and visual verification of a complex minke whale vocalization. , 2001, The Journal of the Acoustical Society of America.

[14]  J. Hildebrand,et al.  Temporal separation of two fin whale call types across the eastern North Pacific , 2012, Marine biology.

[15]  John A. Hildebrand,et al.  Temporal separation of blue whale call types on a southern California feeding ground , 2007, Animal Behaviour.

[16]  J. Hildebrand,et al.  LOW FREQUENCY CALLS OF BRYDE'S WHALES , 2003 .

[17]  R. Payne,et al.  Songs of Humpback Whales , 1971, Science.

[18]  P. O. Thompson,et al.  UNDERWATER SOUNDS OF BLUE WHALES, BALAENOPTERA MUSCULUS, IN THE GULF OF CALIFORNIA, MEXICO , 1996 .

[19]  K. Stafford.  A Review of Blue Whale Studies from HARUphones in the Pacific , 2016 .

[20]  Katsutoshi Watanabe,et al.  IUCN Red List of Threatened Species: ビワヨシノボリ , 2018 .